On APDU level, how to process wtx or 0x60?
In CCID specification I can see "If the ICC request time extension, by using a NULL proceduce byte (0x60) in T=0 protocol or S(wtx) in T=1 prptocol, the CCID informs the host of this request." But I annot understand very well.

I should say thanks firstly. I'm ashamed of myself for my description is so poor. I have solved this problem luckly. The reason is that my device response "not support" to the "GetSlot" command came from MAC. So I can get the complete enumeration by USB anayler. But the tools on MAC cannot communica...

Hello, everyone. I want to implement a compound device. It has two protocol: CCID and FIDO HID.I have some problem with it. How to select protocol? FIDO HID can interrupt CCID to process its commands if CCID is working?

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